Monday

December 22, 2014

December 22, 2014

Posted by **Sydney** on Wednesday, September 14, 2011 at 9:52pm.

(a) Find the maximum height the second child reaches.

(b) What is the initial speed of the first child?

(c) How long was the first child in the air?

- Physics -
**Brianna**, Thursday, September 29, 2011 at 8:16pmYo= 0m

h=?

A=g=9.8m/s^2

Child A:

Voa= ?

Ya= 1.6h

Ta= ?

Child B:

Vob= 5.2 m/s

Yb= h

a) Vob^2 = 2AYb

Yb= Vob/2A

h= (5.2 m/s)^2/(2(9.8m/s^2))

h= 1.37m

b) Voa=?

Voa^2=2AYa

Voa= sqrt(2AYa)

Voa= sqrt(2(9.8m/s^2)(1.6(1.37)))

Voa= 6.55m/s

c) sorry but i can't figure out how to do c

**Answer this Question**

**Related Questions**

physics - Two children are playing on two trampolines. The first child can ...

Physics - Two children are playing on two trampolines. The first child can jump ...

PRECALC HELP!! - Two children are playing on the seesaw. THe lighter child is 9 ...

PreCalculus - Two children are playing on the seesaw. THe lighter child is 9 ...

Physics - Two children on racing bikes start from the same refrence point. ...

math - There are 10 children (aged 1 to 10 years) who have equal amounts of ...

ECE - 1.when a child hits another child because he is angry, the best way to ...

Physics - Two children are riding on a merry-go-round. Child A is at a greater ...

physics - Two children are balancing on a teeter-totter. One child has a mass of...

physics - Two children are balancing on a teeter-totter. One child has a mass of...